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3
RESULTS

Media Type
3
texts
Topics & Subjects
2
Mail sorting.
1
Letter mail handling.
1
Mail sorting--Maryland--Baltimore.
Collection
3
American Libraries
3
FEDLINK - United States Federal Collection
3
National Institute of Standards and Technology Research Library
3
NBS/NIST Technical Notes
Creator
1
henig, seymour
1
levin, b. m. (bernard martin), 1930-; newman, arthur e.
1
tosini, peter c.
Language
3
English
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